These tracks by Oni Ayhun are made up of an alkaline component, one or more acid salts, and an inert starch. Sequenced feedback is the source of the carbon dioxide, and the acid-base reaction is more accurately described as an acid-activated decomposition, which can be generically represented as NaHCO3 + H+ → Na+ + CO2 + H2O. Common low-temperature acid salts include cream of tartar and monocalcium phosphate. High-temperature acid salts include sodium aluminum sulfate, sodium aluminum phosphate, and sodium acid pyrophosphate. This includes both.

"'Once upon a time, a long, long time ago, there was a mystical city called Tar. And at that time, all the cities were intact and flourishing -- there were no ruins, because the final war had not yet begun. When the great catastrophe occurred, all the cities crumbled. Except Tar. Tar still exists. If you know where to look for it, you will find it. And when you get there, you will be presented with wine and water, and you could play with a gramophone. When you get there, you will help harvest grapes and you will pick up scorpions hidden under white rocks. When you get there, you will know eternity. You'll see a bird that drinks one drop of water from the ocean every hundred years. When you get there, you'll understand life. You'll become a cat, phoenix, swan, elephant, baby and an old man. You'll be alone and accompanied. You'll love and be loved, you'll be everywhere, and yours will be the seal of seals. As you approach the future, you'll find ecstasy, and it will never abandon you.' --(From Alexander Jodorowky's Fando y Lis, 1968) This second release from Oni Ayhun is a 22:44 min long story, split on two sides."